Bolt and locking device therefor.



N. SGHELL.

BOLT AND LOCKING DEVICE THEREFOR.

APPLICATION FILED SEPT. 22, 1910.

1,035 Patented Sept. 17, 1912.

g .i V R 2 5 t? .5. Witnesseq 7 g [Ewe tor" Byber 01118 or more annular recesses 2.

NATALIE SGHEELL, or NEW YORK, N. Y.

' FFICE.

. BOLT AND LOCKING nnvrcn THEREFOR.

Specification of Letters Patent.

Patented Sept. 17, 1912.

Application filed September 22, 1910. Serial No. 533,179.

To all whom it may concern:

Be it known that I, NATALIE SCHELL, a citizen of the United States, residing at the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Bolts and Looking Devices Therefor, of which the following is a specification.

My present invention relates to an improved bolt and locking device therefor. Its manifold advantages will appear from an understanding of the following specification in connection with the drawings.

a In the drawings which illustrate only one of the forms whlch my invention may take Figure 1 is an elevation of a bolt and lock ing device or clip with my invention shown in use and .as being applied to holding together a pair .of objects in the form of plates shown in cross section Fig. 2 is a top plan view of the devices of Fig. 1 3 shows the bolt detached; Fig. 4 shows the locking clip detached, on a larger scale and in perspective; Fig. 5 shows a convenient method of manipulating a clip by the use of a pair of pincers; and Fig. 6 shows a slightly modified clip.

I will now describe the specific devices of the drawings, reserving it to the claims to point out the novel features and to define the scope of the invention,-it being understood that the claims will be given due range of equivalents.

The bolt has a head 1 as usual. On the other hand, its shank is provided with one The locking clip 3 consists of a piece of metal in U form having forks at its ends to straddle the shank of the bolt. be made of tempered sheet steel or other spring metal. The upper fork 4 straddles the bolt-shank in one of the annular recesses, whereas the lower fork 5 straddles the boltshank proper. The inner edges of the arms of the conform to the sides of the bolt-shank and due to the spring action of the arms of each fork toward each other the accident-al'withdrawal of the shank prevented. Thus, in inserting each fork into straddling position, its arms are momentarily forced apart and then spring together intoinclosing position on the bolt-shank when it has reached the recessed portions of the arms. The clefts 4 and 5 of the forks are shown extending It may forks have recesses et and 5 which spring nietalclip,

rearwardly Beyond the recesses to give greater springiness to the arms. When in position, the clip is under more or less compression as desired, with its upper fork interlocking withwne of the annular recesses of the bolt-shank and with its lower fork deliverin its thrust against the object and toward t e bolt-head. The extent of this compression of the clip and of its resulting thrust depends upon which one of the annular recesses the operator chooses to receive the upper fork. chosen annular recess is to the object. the more the clip must be compressed to insert it into position, and the greater will be its thrust when in position. The ends of the fork-arms are bent upwardly. This facilitates thev insertion of the clip into working position and in the case of the upper fork is a further safeguard against its accidental disengagement from the bolt-shank, Thus. to insert the clip, its upper fork 4 first partially, or even fully, inserted into the chosen annular recess; Then the lower fork is pressed downwardly against the object and forwardly toward the bolt-shank into its final straddling position. The upturned ends of the fork-arms facilitate these manipulations. Finally, as shown at A in Fig. 1, the upturned ends of the upper fork-arms oppose its accidental retraction by engaging the bolt-shank at the place indicated. I

Means is shown on the clip to give a secure non-slippinggrip to a pair of pincers in case such an lnstrument be used to manipu;

late it. Thus, an opening 6 is provided in the back of the clip and a transverse depression 7 is formed in said back leading to the opening. This permits the pincers to engage the clip as shown in Fig. 5.

In Fig. 6 the clip is shown. embodying a modification. The opening 6 is omitted from the back of the clip so that the grip for the pincers is merely the transverse depression, groove or corrugation 7*.

Having thus described my inventiofi, what I'claim 1s: f

1. In combination, a bolt and a U-shaped the bolt having an annular recess and the clip having forked ends, one fork being inserted into straddling po-' sition in the annular recess and the other fork bein inserted into straddling position on the b0 t-shank next the object and there delivering the tension of the clip, the side- 110 d N aturally, -the nearer the armsconstituting at least one of the forks being resilient and cooperating with the bolt-shank to prevent its accidental withdrawal from the fork.

2. In combination, a bolt having a recessed shank and a U-shaped spring metal clip having one end which detachably engages the recessed shank of the bolt and 113N111" its.

, bolt, the bolt being annularly recessed and each end of the clip havingan open-mouthed fork, one fork being endwise insertible into straddling position in the annular recess and the other fork being endwise insertible into straddling position on the bolt shank next the object, and there delivering the tension of the clip.

4. In combination, a bolt and a permanently U-shaped spring metal cli instantly attachable and detachable at wil from the bolt, the bolt being annularly recessed and each end of the clip having an open-mouthed fork, one fork being endwise insertible into straddling position in the annular recess and the other fork being endwise insertible into straddling position on the bolt shank next the object, and there delivering the tension of the clip, the extremities of the side arms of the forks being upturned, substantially as and for the purposes set forth.

In testimony whereof I aifix my signature in presence of two witnesses.

NATALIE scHELL.

Witnesses E. W. SOHERR, J r., ALAN MGDONNELL. 

